| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.settings.wifi.details2; |
| |
| import android.content.Context; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiManager; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.preference.DropDownPreference; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.R; |
| import com.android.settings.core.BasePreferenceController; |
| import com.android.settings.wifi.WifiDialog2; |
| import com.android.settingslib.core.AbstractPreferenceController; |
| import com.android.wifitrackerlib.WifiEntry; |
| |
| /** |
| * {@link AbstractPreferenceController} that controls whether the wifi network is mac randomized |
| * or not |
| */ |
| public class WifiPrivacyPreferenceController2 extends BasePreferenceController implements |
| Preference.OnPreferenceChangeListener, WifiDialog2.WifiDialog2Listener { |
| |
| private static final String KEY_WIFI_PRIVACY = "privacy"; |
| private WifiManager mWifiManager; |
| private WifiEntry mWifiEntry; |
| private Preference mPreference; |
| |
| public WifiPrivacyPreferenceController2(Context context) { |
| super(context, KEY_WIFI_PRIVACY); |
| |
| mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); |
| } |
| |
| public void setWifiEntry(WifiEntry wifiEntry) { |
| mWifiEntry = wifiEntry; |
| } |
| |
| @Override |
| public int getAvailabilityStatus() { |
| return mWifiManager.isConnectedMacRandomizationSupported() |
| ? AVAILABLE : CONDITIONALLY_UNAVAILABLE; |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreference = screen.findPreference(getPreferenceKey()); |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| final DropDownPreference dropDownPreference = (DropDownPreference) preference; |
| final int randomizationLevel = getRandomizationValue(); |
| dropDownPreference.setValue(Integer.toString(randomizationLevel)); |
| updateSummary(dropDownPreference, randomizationLevel); |
| |
| // Makes preference not selectable, when this is a ephemeral network. |
| if (!mWifiEntry.canSetPrivacy()) { |
| preference.setSelectable(false); |
| dropDownPreference.setSummary(R.string.wifi_privacy_settings_ephemeral_summary); |
| } |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object newValue) { |
| final int privacy = Integer.parseInt((String) newValue); |
| mWifiEntry.setPrivacy(privacy); |
| |
| // To activate changing, we need to reconnect network. WiFi will auto connect to |
| // current network after disconnect(). Only needed when this is connected network. |
| if (mWifiEntry.getConnectedState() == WifiEntry.CONNECTED_STATE_CONNECTED) { |
| mWifiEntry.disconnect(null /* callback */); |
| mWifiEntry.connect(null /* callback */); |
| } |
| updateSummary((DropDownPreference) preference, privacy); |
| return true; |
| } |
| |
| @VisibleForTesting |
| int getRandomizationValue() { |
| return mWifiEntry.getPrivacy(); |
| } |
| |
| private static final int PREF_RANDOMIZATION_PERSISTENT = 0; |
| private static final int PREF_RANDOMIZATION_NONE = 1; |
| |
| /** |
| * Returns preference index value. |
| * |
| * @param macRandomized is mac randomized value |
| * @return index value of preference |
| */ |
| public static int translateMacRandomizedValueToPrefValue(int macRandomized) { |
| return (macRandomized == WifiEntry.PRIVACY_RANDOMIZED_MAC) |
| ? PREF_RANDOMIZATION_PERSISTENT : PREF_RANDOMIZATION_NONE; |
| } |
| |
| /** |
| * Returns mac randomized value. |
| * |
| * @param prefMacRandomized is preference index value |
| * @return mac randomized value |
| */ |
| public static int translatePrefValueToMacRandomizedValue(int prefMacRandomized) { |
| return (prefMacRandomized == PREF_RANDOMIZATION_PERSISTENT) |
| ? WifiEntry.PRIVACY_RANDOMIZED_MAC : WifiEntry.PRIVACY_DEVICE_MAC; |
| } |
| |
| private void updateSummary(DropDownPreference preference, int macRandomized) { |
| // Translates value here to set RANDOMIZATION_PERSISTENT as first item in UI for better UX. |
| final int prefMacRandomized = translateMacRandomizedValueToPrefValue(macRandomized); |
| preference.setSummary(preference.getEntries()[prefMacRandomized]); |
| } |
| |
| @Override |
| public void onSubmit(WifiDialog2 dialog) { |
| if (dialog.getController() != null) { |
| final WifiConfiguration newConfig = dialog.getController().getConfig(); |
| if (newConfig == null) { |
| return; |
| } |
| |
| if (getWifiEntryPrivacy(newConfig) != mWifiEntry.getPrivacy()) { |
| mWifiEntry.setPrivacy(getWifiEntryPrivacy(newConfig)); |
| onPreferenceChange(mPreference, String.valueOf(newConfig.macRandomizationSetting)); |
| } |
| } |
| } |
| |
| private int getWifiEntryPrivacy(WifiConfiguration wifiConfiguration) { |
| switch (wifiConfiguration.macRandomizationSetting) { |
| case WifiConfiguration.RANDOMIZATION_NONE: |
| return WifiEntry.PRIVACY_DEVICE_MAC; |
| case WifiConfiguration.RANDOMIZATION_PERSISTENT: |
| return WifiEntry.PRIVACY_RANDOMIZED_MAC; |
| default: |
| return WifiEntry.PRIVACY_UNKNOWN; |
| } |
| } |
| } |